Question

physics question.. worth a medal!!

Answer 1

An engine absorbs 2150 J as heat from a hot reservoir and gives off 750 J as heat to a cold reservoir during each cycle. What is the efficiency of the engine?

Answer 2

Output/Input * 100.

Answer 3

ok thanks! so it's 286.67?

Answer 4

@primeralph

Answer 5

Efficiency can never be greater than 100.

Answer 6

oh right so it's 34.88?

Answer 7

Show how you got that.

Answer 8

\[(750\div2150)\times100\]

Answer 9

Yeah.

Answer 10

thanks!